ASTM A335 P5 is a seamless ferritic alloy-steel pipe specification used for high-temperature service applications, such as in all applicatio
ASTM A335 P5 Seamless Alloy Steel Pipes are premium chromium‑molybdenum (Cr‑Mo) alloy steel pipes engineered for high‑temperature, high‑pressure service in demanding industrial applications. Manufactured under the ASTM A335 specification, this grade (including P5, P5b & P5c with UNS K41545 series) delivers exceptional creep resistance, oxidation protection, and mechanical strength at elevated temperatures.
These seamless alloy steel pipes are widely used in boilers, refinery heater lines, petrochemical units, steam pipelines, and heat exchangers, where durability and reliable long‑term performance are critical.